Assange criticized the United States for revoking Snowden's passport and said it would not stop the classified information taken by the 30-year-old former contractor from getting out.

"Look, there is no stopping the publishing process at this stage," Assange said in an interview with ABC's "This Week" television show. "Great care has been taken to make sure that Mr. Snowden can't be pressured by any state to stop the publication process."

He did not directly respond when asked if WikiLeaks was in possession of the files.

Last week, Glenn Greenwald, the Guardian journalist who first published the classified information released by Snowden, said Snowden had made encrypted copies of his files and distributed them in case anything happened to him.